2021
DOI: 10.1021/acsestwater.1c00120
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Abstract: While the presence of organic macromolecules (or foulants) can exacerbate silica scaling of membranes, the effects of the types and physicochemical properties of macromolecules on silica scale formation remain poorly understood. We herein use a quartz crystal microbalance with dissipation monitoring to investigate the kinetics of silica mass deposition on sensors coated by lysozyme, bovine serum albumin (BSA), humic acid, or alginate. Our results show that deposited silica mass resulting from heterogeneous nuc… Show more

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Cited by 6 publications
(18 citation statements)
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“…55 Water in the substituent effect CGC polymerization solution has the ability to consume the base used to deprotonate monomer, which in turn affects the overall polymerization, as monomer that is not deprotonated can react with deprotonated monomer to initiate a polymer chain and result in larger PDIs. 44 With this in mind, polymerizations were performed using the same drying technique as in previous studies by our group, that is, 30 min of drying followed by degassing with nitrogen three times. 34 This was compared to drying by adding toluene and removing it with a vacuum three times, and replacing the atmosphere with nitrogen, to remove water azeotropically.…”
Section: ■ Results and Discussionmentioning
confidence: 99%
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“…55 Water in the substituent effect CGC polymerization solution has the ability to consume the base used to deprotonate monomer, which in turn affects the overall polymerization, as monomer that is not deprotonated can react with deprotonated monomer to initiate a polymer chain and result in larger PDIs. 44 With this in mind, polymerizations were performed using the same drying technique as in previous studies by our group, that is, 30 min of drying followed by degassing with nitrogen three times. 34 This was compared to drying by adding toluene and removing it with a vacuum three times, and replacing the atmosphere with nitrogen, to remove water azeotropically.…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…PEG polymers have long been known for their affinity to water, and, as such, we hypothesized the observed variations could be due to different amounts of water absorbed by the monomers . Water in the substituent effect CGC polymerization solution has the ability to consume the base used to deprotonate monomer, which in turn affects the overall polymerization, as monomer that is not deprotonated can react with deprotonated monomer to initiate a polymer chain and result in larger PDIs . With this in mind, polymerizations were performed using the same drying technique as in previous studies by our group, that is, 30 min of drying followed by degassing with nitrogen three times .…”
Section: Resultsmentioning
confidence: 99%
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“…Recently, researchers have started to investigate combined fouling and scaling as well as the foulant–scalant interactions. The presence of organic foulants has been shown to regulate homogeneous nucleation of mineral formation by altering the free energy barrier and/or mineral particle aggregation. When a layer of organic foulants forms on the membrane surface, the thermodynamics of heterogeneous mineral nucleation or the deposition kinetics of mineral scales could be potentially changed. , Despite the importance of understanding the coupling of organic fouling and mineral scaling in membrane desalination, the existing literature has only seen review articles that exclusively focus on individual fouling or scaling (i.e., feedwaters contain only organic foulants or mineral scalants). ,,,,, To the best of our knowledge, there is still a lack of review articles that summarize current knowledge regarding the combined behaviors of organic fouling and mineral scaling, as well as the interactions between foulants and scalants at the water–membrane interface. We acknowledge that combined fouling involving more categories of foulants, including biological and colloidal foulants, is also common in membrane processes.…”
Section: Introductionmentioning
confidence: 99%